Alright, this bolt upgrade for the Vibe and SP-1 Blackheart is amazing. The TechT bolt is bad ass, makes your gun shoot alot more crisp, less kick, a tad more efficiency and definitely makes your gun alot quieter.

I ONLY recommend this bolt upgrade to those who have the blackheart board, or aftermarket board. You will need to shut off your ABS / FSDO setting because the TechT Bolt doesn't need the additional dwell

Installing it is easy, put some lube on the bolt, plug and bolt stop. Stick the plug down into the back cap, and stick the bolt and bolt stop into the gun.

Alright, this bolt upgrade for the Vibe and SP-1 Blackheart is amazing. The TechT bolt is bad ass, makes your gun shoot alot more crisp, less kick, a tad more efficiency and definitely makes your gun alot quieter.

I ONLY recommend this bolt upgrade to those who have the blackheart board, or aftermarket board. You will need to shut off your ABS / FSDO setting because the TechT Bolt doesn't need the additional dwell

Installing it is easy, put some lube on the bolt, plug and bolt stop. Stick the plug down into the back cap, and stick the bolt and bolt stop into the gun.

I've just sent a msg to Mike, but will ask here too. Has anyone experience with modifing the Vibe Blackheart board and the chamber to fit in SP1? It's simple, the SP-1 BH board is no more awayable. Or I am so stupid and can't find the right store ...

Hi, finally get the SP-1 BH and installed it. TechT L7v2 bolat have already installed. But problem is, that I don't know, if the dwell time is counted simply - 1 trigger pull - 1 ms, or it starts with 5 ms and 1 trigger pull adds 1 ms (dwell = 5 + number of trigger pulls). And I also switched off the FSDO as Mike says (entered programming mode, entered the FSDO setting, entered by long trigger pull ane then i didn't pull the trigger, so it should be set to 0 (?????)), but the first shot is really weak. Sometimes it just fall out of barrel.

Hi, finally get the SP-1 BH and installed it. TechT L7v2 bolat have already installed. But problem is, that I don't know, if the dwell time is counted simply - 1 trigger pull - 1 ms, or it starts with 5 ms and 1 trigger pull adds 1 ms (dwell = 5 + number of trigger pulls). And I also switched off the FSDO as Mike says (entered programming mode, entered the FSDO setting, entered by long trigger pull ane then i didn't pull the trigger, so it should be set to 0 (?????)), but the first shot is really weak. Sometimes it just fall out of barrel.

So how to set it right?

Thanks for reply.

From what was told to me, if you leave it as a default (i.e 0 blinks), it defaults to 5ms. However, once you begin pulling the trigger, the MS is per trigger pull. So, 15 pulls = 15ms.

I also switched off FSDO (with a 15ms dwell) and every couple of shots would "bloop" out of the barrel. I switched it back to 5ms (default), but I could probably pull that down to 4 or 3. So, for the moment, with the same setup as you, I have mine set for 15ms dwell & 5ms FSDO. Everything seems to be working fine and I'm well above the efficiency of a stock SP1.

Hi, finally get the SP-1 BH and installed it. TechT L7v2 bolat have already installed. But problem is, that I don't know, if the dwell time is counted simply - 1 trigger pull - 1 ms, or it starts with 5 ms and 1 trigger pull adds 1 ms (dwell = 5 + number of trigger pulls). And I also switched off the FSDO as Mike says (entered programming mode, entered the FSDO setting, entered by long trigger pull ane then i didn't pull the trigger, so it should be set to 0 (?????)), but the first shot is really weak. Sometimes it just fall out of barrel.

So how to set it right?

Thanks for reply.

For dwell, it starts at 0 every time you program it.ex; You pull the trigger 20 times while adjusting dwell, the dwell is set to 20ms.

what about boxer breafs? Its like boxers but a little tighter so ur wang dont go bang bang in ur pants lol.

Really angrry about my SP1 and BH, will throw it all out of the window. REplaced orings on Bolt, Bolt stop, Body rear. Only two in tube are resting, but they should be new, because Ive just installed the BH kit. And still have problem with first shot. After a while it seems, that the air was went out earlier and the first shot is weak. after the firs shot is everything OK untill the next delay. But FSDO is activated after 20s and its too early.